Riken Keiki GD-3EC, Техническое руководство

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1. Product Overview 1-2 Intended use and features
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1-2 Intended use and features
The product is a fixed explosion-proof device for continuous monitoring of combustible gases, toxic gases, and
oxygen in the air.
An alarm is triggered if combustible gases, toxic gases, or oxygen exceeding preset concentrations are
detected in the air.
The detection results are not intended to assure life or safety.
1-2-1 Models and Codes
SD-3
① ② （ ③
1 0 0
⑦ ⑧ ）
[Remote type: Main unit (SD-3SC) + Remote sensor unit (GD-3)]
SD-3SC
(
③
1 0 0
⑦ ⑧
)
GD-3
① ②
①
Diffusion type/suction type selection
⑥
Performance certification
Blank Diffusion type 0 None [Standard]
D Suction type (introduced via external unit) 1 -
②
Sensor type selection 2 -
RI Infrared type 3 -
NC New ceramic type
⑦
Range setting *
GH Semiconductor type 0 Single range [Standard]
GHS
Semiconductor type (selectable for CS
2
only)
1
Double range +4-16 (selectable
with NC only)
SP Hot-wire semiconductor type 2
Double range + L4-20 (selectable
with NC only)
EC
Electrochemical type (selectable for
CO/O
2
only)
3
Double range + H4-20 (selectable
with NC only)
ECS
Electrochemical type (selectable for H
2
S
only)
⑧
Output type selection
ECB
Electrochemical type (selectable for
gases other than CO/O
2
/H
2
)
0 4-20 mA + HART [Standard]
③
Cable connectors 1 4-20 mA + HART + contact (3c)
0 Connector 1 + Connector 2 [Standard] 2 -
1
Connector 1 + Connector 2+ Connector
4 + Connector 5 *HART communication is unavailable when double range
(optional) is selected.
④
Explosion-proof
1 ATEX/IECEx [Standard]
2 -
3 -
4 -
⑤ Functional safety
0 None [Standard]
1 -
Example: Cable connectors
Standard
Standard
Optional
Optional
Connector
1
Connector
2
Connector
4
Connector
5
Connector
3
*Not used